CN113883981A - Detection method of bolt part - Google Patents
Detection method of bolt part Download PDFInfo
- Publication number
- CN113883981A CN113883981A CN202111052035.6A CN202111052035A CN113883981A CN 113883981 A CN113883981 A CN 113883981A CN 202111052035 A CN202111052035 A CN 202111052035A CN 113883981 A CN113883981 A CN 113883981A
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- Prior art keywords
- bolt
- hexagonal
- detected
- straightness
- groove
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- 238000001514 detection method Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
Abstract
The invention provides a detection method of a bolt part, which comprises the following steps: s1: measuring the straightness of the bolt to be detected by using a straightness detection mould, wherein the bolt is placed in the straightness detection mould, namely the straightness of the bolt to be detected is qualified, and otherwise, the bolt is not qualified; s2: the method comprises the following steps of feeding a hexagonal plug gauge into a hexagonal hole of a bolt to be detected in parallel to detect the width of the hexagonal hole of the bolt to be detected; s3: and when the hexagonal plug gauge is arranged in the hexagonal hole, detecting the depth of the hexagonal hole of the bolt to be detected according to the depth of the hexagonal plug gauge in the hexagonal hole. The detection tool used by the detection method of the bolt part is more suitable for the structure of the bolt part, the straightness, the width dimension and the depth dimension of the hexagonal hole of the bolt part detected by the detection method are more accurate, the detection method is simple and convenient, and the error and omission detection rate of the detection method in the prior art is reduced.
Description
Technical Field
The invention relates to the field of machining and measurement, in particular to a detection method of a bolt part.
Background
The bolt part is the most widely used part on an aviation computer, and the processing quality of the bolt part influences the disassembly efficiency of the module. As shown in figure 3, the left end of the bolt part is provided with a hexagonal hole with a 120-degree cone angle at one end and two-step optical axis, and the width dimension of the hexagonal hole is generally equal to
The depth dimension is 2.8mm, and the limit deviation of HB5800-1999 general tolerance is 2.8 +/-0.12 mm. The middle part has a section of optical axis and the diameter of the middle optical axis
The right end is provided with a section of external thread with the precision of M3-6g, and the straightness of the external thread sections at the middle optical axis and the right end is phi 0.03 mm.
The detection of the bolt needs to measure the straightness, the hexagonal depth and the width of the bolt, the existing bolt detection uses a measuring platform and a clearance gauge optical clearance method to measure the straightness, and uses a vernier caliper to directly measure the inner hexagonal depth and the width. In the measuring process, the bolt is horizontally placed on the measuring platform to roll circumferentially, and the clearance between the bolt and the table top of the measuring platform is measured by using the feeler gauge to determine whether the clearance is less than or equal to 0.03 mm.
However, the above-mentioned detection method has a large error when measuring the straightness, and in the depth dimension measuring process, because the bottom of the inner hexagonal hole has a taper, the width in the depth measuring direction on the existing vernier caliper needs to be eliminated and ground to be smaller than the width dimension of the inner hexagonal hole, and the error of the measured depth dimension is large; in the width dimension measurement process, inside hexagonal hole width dimension can't effectively stretch into in current slide caliper measures, can only measure drill way position, and the unable effective measurement in hole middle part and bottom leads to measuring width dimension error great.
Therefore, it is desirable to provide a method for inspecting a bolt component, which can reduce the inspection error.
Disclosure of Invention
The invention aims to provide a detection method of a bolt part with a small error, and the detection method is used for solving the error problem existing in the existing detection method.
The invention provides a detection method of a bolt part, which comprises the following steps:
s1: measuring the straightness of the bolt to be detected by using a straightness detection mould, wherein the bolt is placed in the straightness detection mould, namely the straightness of the bolt to be detected is qualified, and otherwise, the bolt is not qualified;
s2: the method comprises the following steps of feeding a hexagonal plug gauge into a hexagonal hole of a bolt to be detected in parallel to detect the width of the hexagonal hole of the bolt to be detected;
s3: and when the hexagonal plug gauge is arranged in the hexagonal hole, detecting the depth of the hexagonal hole of the bolt to be detected according to the depth of the hexagonal plug gauge in the hexagonal hole.
The detection method of the bolt part provided by the invention is also characterized in that the straightness detection mould is provided with a through groove, and two ends of the through groove are provided with chamfers.
The detection method of the bolt part provided by the invention is also characterized in that the length of the through groove is not less than the total length of the bolt part to be detected; the basic width of the through groove is equal to the sum of the maximum value of the optical axis diameter of the bolt to be measured and the straightness tolerance, the upper deviation is +0.02mm, and the lower deviation is +0.008 mm; the depth of the through groove is larger than the diameter of the optical axis of the bolt to be measured.
The detection method of the bolt part provided by the invention is also characterized in that the hexagonal plug gauge is in an external hexagonal structure, one end of the hexagonal plug gauge is a through end, and the other end of the hexagonal plug gauge is a stop end; the through end is used for extending into a hexagonal hole of the bolt to be tested, and the size of the stop end is larger than that of the through end.
The detection method of the bolt part provided by the invention is also characterized in that the width of the through end hexagon is
The width of the end stop hexagon is
The detection method of the bolt part provided by the invention is also characterized in that a groove is arranged on the upper surface of the through end of the hexagonal-head plug gauge, the length from the bottom of the groove X to the edge of the through end is the minimum depth of the bolt part, the upper deviation is +0.005mm, the lower deviation is 0mm, the length from the top of the groove X to the edge of the through end is the maximum depth of the bolt part, the upper deviation is 0mm, and the lower deviation is-0.005 mm.
Compared with the prior art, the invention has the beneficial effects that:
the detection tool used by the detection method of the bolt part is more suitable for the structure of the bolt part, the straightness, the width dimension and the depth dimension of the hexagonal hole of the bolt part detected by the detection method are more accurate, the detection method is simple and convenient, and the error and omission detection rate of the detection method in the prior art is reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a straightness detection tool used in the detection method provided by the present invention;
FIG. 2 is a schematic structural diagram of a hexagonal plug gauge used in the detection method provided by the invention;
FIG. 3 is a schematic structural diagram of a bolt part detected by the detection method provided by the present invention,
wherein, 1: a straightness inspection die; 11: a through groove; 12: chamfering; 2: a six-square-head plug gauge; 21: a through end; 211: a groove; 22: and (7) stopping the end.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments are specifically described in the detection method provided by the invention with reference to the drawings.
In the description of the embodiments of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing and simplifying the description of the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The embodiment of the invention provides a method for detecting a bolt part, which comprises the following steps:
s1: measuring the straightness of the bolt to be detected by using a straightness detection die 1, wherein the bolt is placed in the straightness detection die 1, namely the straightness of the bolt to be detected is qualified, and otherwise the bolt is not qualified;
s2: the method comprises the following steps of parallelly feeding a hexagonal-head plug gauge 2 into a hexagonal hole of a bolt to be detected to detect the width of the hexagonal hole of the bolt to be detected, when the hexagonal-head plug gauge 2 is fed into the hexagonal hole of the bolt to be detected, the hexagonal-head plug gauge 2 cannot deflect and rotate to avoid severe abrasion, a through end 21 of the hexagonal-head plug gauge 2 smoothly passes through the hexagonal hole of the bolt to be detected, a stop end 22 does not pass through the hexagonal hole of the bolt to be detected, the through end 21 and the stop end 22 are qualified, the through end 21 and the stop end 22 are respectively measured once, and a detected result is recorded;
s3: when the hexagonal plug gauge 2 is arranged in the hexagonal hole, the depth of the hexagonal hole of the bolt to be detected is detected according to the depth of the hexagonal plug gauge arranged in the hexagonal hole. Wherein, closely contact in hexagonal hole bottom, bolt hexagonal hole top surface is between the groove of plug gauge logical end 21, only need measure once, then prove bolt hexagonal head degree of depth size is qualified, record testing result.
As shown in fig. 1, a through groove 11 is provided on the straightness testing mold 1, and chamfers 12 are provided at two ends of the through groove 11. The length of the through groove 11 is not less than the total length of the bolt part to be detected; the basic width of the through groove 11 is equal to the sum of the maximum value of the optical axis diameter of the bolt to be measured and the straightness tolerance, the upper deviation is +0.02mm, and the lower deviation is +0.008 mm; the depth of the through groove 11 is larger than the diameter of the optical axis of the bolt to be measured. The material of the straightness checking die 1 is GCr15, and the width dimension of the through groove 11
Depth dimension
The surface roughness values of the bottom and side surfaces of the groove, Ra0.08, heat treatment, HRC60-65, no tolerance execution, HB5800-1999, surface roughness value, Ra0.2, rust prevention treatment of the surface of the linearity test module 1.
As shown in fig. 2, fig. (a) and (c) are respectively a right side view and a left side view, and fig. (b) is a front view, and it can be seen that the hexagonal plug gauge 2 has an external hexagonal structure, one end of which is a through end 21, and the other end of which is a stop end 22; the through end 21 is used for extending into a hexagonal hole of a bolt to be tested, and the ruler of the end 22The size of the opening is larger than that of the through end 21. The through end 21 has a hexagonal width of
The width of the hexagon of the end stop 22 is
The upper surface of the through end 21 of the hexagonal plug gauge is provided with a groove 211, the length from the X-direction bottom of the groove 211 to the edge of the through end is the minimum depth of the bolt part, the upper deviation is +0.005mm, the lower deviation is 0mm, the length from the X-direction top of the groove 211 to the edge of the through end 21 is the maximum depth of the bolt part, the upper deviation is 0mm, and the lower deviation is-0.005 mm. The six-square-head plug gauge 2 is made of GCr15 and has a through end size
End size
Heat treating HRC60-65, performing HB5800-1999 without tolerance, performing surface roughness value Ra0.2, rounding R0.3 and chamfering C0.3, and performing rust prevention treatment on the surface.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A detection method of a bolt part is characterized by comprising the following steps:
s1: measuring the straightness of the bolt to be detected by using a straightness detection mould, wherein the bolt is placed in the straightness detection mould, namely the straightness of the bolt to be detected is qualified, and otherwise, the bolt is not qualified;
s2: the method comprises the following steps of feeding a hexagonal plug gauge into a hexagonal hole of a bolt to be detected in parallel to detect the width of the hexagonal hole of the bolt to be detected;
s3: and when the hexagonal plug gauge is arranged in the hexagonal hole, detecting the depth of the hexagonal hole of the bolt to be detected according to the depth of the hexagonal plug gauge in the hexagonal hole.
2. The method for detecting a bolt part according to claim 1, wherein a through groove is provided on the straightness-checking mold, and chamfers are provided at both ends of the through groove.
3. The method for detecting the bolt part according to claim 2, wherein the length of the through groove is not less than the total length of the bolt part to be detected; the basic width of the through groove is equal to the sum of the maximum value of the optical axis diameter of the bolt to be measured and the straightness tolerance, the upper deviation is +0.02mm, and the lower deviation is +0.008 mm; the depth of the through groove is larger than the diameter of the optical axis of the bolt to be measured.
4. The method for detecting the bolt part according to claim 1, wherein the hexagonal plug gauge is of an external hexagonal structure, one end of the hexagonal plug gauge is a through end, and the other end of the hexagonal plug gauge is a stop end; the through end is used for extending into a hexagonal hole of the bolt to be tested, and the size of the stop end is larger than that of the through end.
5. The method for inspecting a bolt member according to claim 4, wherein the width of the through-end hexagon is set to be
The width of the end stop hexagon is
6. The method for detecting the bolt part according to claim 4, wherein a groove is formed in the upper surface of the through end of the hexagonal-head plug gauge, the length from the bottom of the groove X to the edge of the through end is the minimum depth of the bolt part, the upper deviation is +0.005mm, the lower deviation is 0mm, the length from the top of the groove X to the edge of the through end is the maximum depth of the bolt part, the upper deviation is 0mm, and the lower deviation is-0.005 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111052035.6A CN113883981B (en) | 2021-09-08 | 2021-09-08 | Detection method for bolt part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111052035.6A CN113883981B (en) | 2021-09-08 | 2021-09-08 | Detection method for bolt part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113883981A true CN113883981A (en) | 2022-01-04 |
| CN113883981B CN113883981B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111052035.6A Active CN113883981B (en) | 2021-09-08 | 2021-09-08 | Detection method for bolt part |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075634A (en) * | 2014-05-05 | 2014-10-01 | 河南航天精工制造有限公司 | Fastener internal hexagon detection tool |
| CN105258596A (en) * | 2015-11-11 | 2016-01-20 | 中铁隆昌铁路器材有限公司 | Bolt-type position tolerance integration testing fixture and detection method |
| US20160349030A1 (en) * | 2015-06-01 | 2016-12-01 | Wesley Keith Johnson | Nut and Stud Size Gauge |
| CN210089600U (en) * | 2019-07-27 | 2020-02-18 | 长春市吉通凯撒铝业有限责任公司 | Special gauge for detecting deformation of knuckle blank |
| CN213179827U (en) * | 2020-10-29 | 2021-05-11 | 山东九佳紧固件股份有限公司 | Bolt straightness detection tool |
-
2021
- 2021-09-08 CN CN202111052035.6A patent/CN113883981B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075634A (en) * | 2014-05-05 | 2014-10-01 | 河南航天精工制造有限公司 | Fastener internal hexagon detection tool |
| US20160349030A1 (en) * | 2015-06-01 | 2016-12-01 | Wesley Keith Johnson | Nut and Stud Size Gauge |
| CN105258596A (en) * | 2015-11-11 | 2016-01-20 | 中铁隆昌铁路器材有限公司 | Bolt-type position tolerance integration testing fixture and detection method |
| CN210089600U (en) * | 2019-07-27 | 2020-02-18 | 长春市吉通凯撒铝业有限责任公司 | Special gauge for detecting deformation of knuckle blank |
| CN213179827U (en) * | 2020-10-29 | 2021-05-11 | 山东九佳紧固件股份有限公司 | Bolt straightness detection tool |
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| Publication number | Publication date |
|---|---|
| CN113883981B (en) | 2024-04-16 |
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